{"id":1533,"date":"2026-04-29T23:53:11","date_gmt":"2026-04-29T23:53:11","guid":{"rendered":"https:\/\/www.vos3000.com\/blog\/?p=1533"},"modified":"2026-04-29T23:53:21","modified_gmt":"2026-04-29T23:53:21","slug":"vos3000-authorization-type-hierarchy","status":"publish","type":"post","link":"https:\/\/www.vos3000.com\/blog\/vos3000-authorization-type-hierarchy\/","title":{"rendered":"VOS3000 Authorization Type Hierarchy: Important International Domestic Local Net"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\" id=\"vos-3000-authorization-type-hierarchy-vital-international-domestic-local-net\">VOS3000 Authorization Type Hierarchy: Vital International Domestic Local Net<\/h1>\n\n\n\n<p>\ud83d\udd10 How does your VOS3000 softswitch decide which destinations a phone is allowed to call? What stops a local-only extension from dialing expensive international numbers? The answer lies in the <strong>VOS3000 authorization type hierarchy<\/strong> \u2014 a four-tier permission system that controls exactly which call types each phone can make. \ud83c\udfaf<\/p>\n\n\n\n<p>\ud83d\udccb According to the official VOS3000 V2.1.9.07 Manual, Section 2.5.2 (Phone Management), the <strong>VOS3000 authorization type hierarchy<\/strong> follows a strict precedence rule: <strong>International call &gt; Domestic call &gt; Local call &gt; Net call<\/strong>. This means that a phone with International authorization automatically has permission to make Domestic, Local, and Net calls \u2014 because the higher authorization level inherently includes all lower levels. Conversely, a phone with only Local authorization cannot make Domestic or International calls, and the call will be banned. \ud83d\udee1\ufe0f<\/p>\n\n\n\n<p>\ud83d\udd27 All data in this guide is sourced exclusively from the official VOS3000 V2.1.9.07 Manual, Section 2.5.2 \u2014 no fabricated values, no guesswork. For expert assistance with your VOS3000 deployment, contact us on WhatsApp at <strong>+8801911119966<\/strong>. \ud83d\udca1<\/p>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>Table of Contents<\/h2><nav><ul><li><a href=\"#vos-3000-authorization-type-hierarchy-vital-international-domestic-local-net\">VOS3000 Authorization Type Hierarchy: Vital International Domestic Local Net<\/a><ul><li><a href=\"#\ud83d\udd10-what-is-vos-3000-authorization-type-hierarchy\">\ud83d\udd10 What Is VOS3000 Authorization Type Hierarchy?<\/a><ul><li><a href=\"#\ud83c\udfaf-why-vos-3000-authorization-type-hierarchy-matters\">\ud83c\udfaf Why VOS3000 Authorization Type Hierarchy Matters<\/a><\/li><\/ul><\/li><li><a href=\"#\u2699\ufe0f-how-authorization-checks-work-in-vos-3000\">\u2699\ufe0f How Authorization Checks Work in VOS3000<\/a><\/li><li><a href=\"#\ud83d\udccb-vos-3000-authorization-type-per-phone-configuration\">\ud83d\udccb VOS3000 Authorization Type \u2014 Per-Phone Configuration<\/a><\/li><li><a href=\"#\ud83d\udcca-vos-3000-authorization-type-deployment-scenarios\">\ud83d\udcca VOS3000 Authorization Type Hierarchy \u2014 Deployment Scenarios<\/a><\/li><li><a href=\"#\ud83d\udd17-authorization-type-and-account-billing-relationship\">\ud83d\udd17 Authorization Type and Account Billing Relationship<\/a><\/li><li><a href=\"#\ud83d\udee1\ufe0f-common-authorization-problems-and-solutions\">\ud83d\udee1\ufe0f Common Authorization Problems and Solutions<\/a><ul><li><a href=\"#\u274c-problem-1-phone-cannot-make-international-calls\">\u274c Problem 1: Phone Cannot Make International Calls<\/a><\/li><li><a href=\"#\u274c-problem-2-local-phone-making-unexpected-domestic-calls\">\u274c Problem 2: Local Phone Making Unexpected Domestic Calls<\/a><\/li><li><a href=\"#\u274c-problem-3-operator-cannot-modify-phone-authorization\">\u274c Problem 3: Operator Cannot Modify Phone Authorization<\/a><\/li><\/ul><\/li><li><a href=\"#\ud83d\udcca-vos-3000-authorization-type-configuration-checklist\">\ud83d\udcca VOS3000 Authorization Type Configuration Checklist<\/a><\/li><li><a href=\"#\u2753-frequently-asked-questions\">\u2753 Frequently Asked Questions<\/a><ul><li><a href=\"#\u2753-what-is-the-vos-3000-authorization-type-hierarchy\">\u2753 What is the VOS3000 authorization type hierarchy?<\/a><\/li><li><a href=\"#\u2753-does-a-phone-with-domestic-authorization-include-local-and-net-calls\">\u2753 Does a phone with Domestic authorization include Local and Net calls?<\/a><\/li><li><a href=\"#\u2753-what-happens-when-a-phone-tries-to-call-a-destination-above-its-authorization-level\">\u2753 What happens when a phone tries to call a destination above its authorization level?<\/a><\/li><li><a href=\"#\u2753-how-do-i-change-a-phones-authorization-type-in-vos-3000\">\u2753 How do I change a phone&#8217;s authorization type in VOS3000?<\/a><\/li><li><a href=\"#\u2753-can-i-assign-multiple-authorization-types-to-a-single-phone\">\u2753 Can I assign multiple authorization types to a single phone?<\/a><\/li><li><a href=\"#\u2753-how-does-the-account-billing-rate-relate-to-phone-authorization\">\u2753 How does the account billing rate relate to phone authorization?<\/a><\/li><\/ul><\/li><li><a href=\"#\ud83d\udcde-need-call-center-setup-support\">\ud83d\udcde Need Professional VOS3000 Setup Support?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udd10-what-is-vos-3000-authorization-type-hierarchy\">\ud83d\udd10 What Is VOS3000 Authorization Type Hierarchy?<\/h2>\n\n\n\n<p>\u23f1\ufe0f The <strong>VOS3000 authorization type hierarchy<\/strong> is a permission system that determines which call destination types a phone extension is allowed to reach. Each phone in VOS3000 is assigned an authorization type, and that type governs the entire scope of outbound calling for that extension. \ud83d\udccb<\/p>\n\n\n\n<p>\ud83d\udccc According to the official VOS3000 V2.1.9.07 Manual, Section 2.5.2:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">Authorization Type<\/th><th class=\"has-text-align-left\" data-align=\"left\">Call Permission<\/th><th class=\"has-text-align-left\" data-align=\"left\">Includes Lower Levels<\/th><\/tr><tr><td>\ud83c\udf0d International call<\/td><td>All destinations: international, domestic, local, net<\/td><td>\u2705 Yes \u2014 Domestic, Local, Net<\/td><\/tr><tr><td>\ud83d\udcde Domestic call<\/td><td>Domestic, local, and net destinations<\/td><td>\u2705 Yes \u2014 Local, Net<\/td><\/tr><tr><td>\ud83c\udfe0 Local call<\/td><td>Local and net destinations only<\/td><td>\u2705 Yes \u2014 Net<\/td><\/tr><tr><td>\ud83d\udd17 Net call<\/td><td>Internal\/net calls only<\/td><td>\u274c No lower levels<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\ud83d\udca1 <strong>Key insight:<\/strong> The VOS3000 manual states clearly: &#8220;The precedence of authorization is: International call &gt; Domestic call &gt; Local call &gt; Net call.&#8221; This hierarchical design means that assigning a higher authorization level automatically grants all lower-level permissions \u2014 you never need to assign multiple authorization types to a single phone. The system also states that if a phone lacks the proper authorization to call the type of number specified, &#8220;the call will be banned.&#8221; \ud83d\udd12<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\ud83c\udfaf-why-vos-3000-authorization-type-hierarchy-matters\">\ud83c\udfaf Why VOS3000 Authorization Type Hierarchy Matters<\/h3>\n\n\n\n<p>\u26a0\ufe0f Without properly configured authorization types, several critical problems can arise in your VOS3000 deployment:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83d\udcb0 <strong>Cost overruns:<\/strong> Phones with excessive authorization can dial expensive international routes, causing unexpected billing charges on the associated account<\/li>\n\n\n\n<li>\ud83d\udd12 <strong>Security risk:<\/strong> Unauthorized international or domestic calling from extensions that should only have local or net access<\/li>\n\n\n\n<li>\ud83d\udcca <strong>Billing disputes:<\/strong> When phones can reach destinations beyond their intended scope, account holders dispute charges they did not authorize<\/li>\n\n\n\n<li>\ud83d\udcde <strong>Operational inefficiency:<\/strong> Phones with too-restrictive authorization (e.g., Net only when Local is needed) prevent legitimate business calls from completing<\/li>\n\n\n\n<li>\ud83d\udee1\ufe0f <strong>Compliance violations:<\/strong> Regulatory requirements in some jurisdictions mandate strict call-type segregation per extension<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u2699\ufe0f-how-authorization-checks-work-in-vos-3000\">\u2699\ufe0f How Authorization Checks Work in VOS3000<\/h2>\n\n\n\n<p>\ud83d\udd04 When a phone initiates an outbound call in VOS3000, the softswitch performs an authorization check before routing the call. The billing rate assigned to the phone&#8217;s account is used for both billing calculation and authorization verification. This is why the VOS3000 manual specifies that the account&#8217;s &#8220;Rate of this account will be used to bill and perform authorization checks upon calling.&#8221; \ud83d\udce1<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\ud83d\udd10 VOS3000 Authorization Check Flow:\n\nPhone Initiates Call\n    \u2502\n    \u251c\u2500\u2500 \ud83d\udccb Step 1: Identify destination number type\n    \u2502   \u251c\u2500\u2500 International number (e.g., 00144207...)\n    \u2502   \u251c\u2500\u2500 Domestic number (e.g., 021234...)\n    \u2502   \u251c\u2500\u2500 Local number (e.g., 3456789)\n    \u2502   \u2514\u2500\u2500 Net\/internal number (e.g., 1001)\n    \u2502\n    \u251c\u2500\u2500 \ud83d\udd0d Step 2: Check phone's authorization type\n    \u2502   \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510\n    \u2502   \u2502  Phone Authorization: Domestic call           \u2502\n    \u2502   \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n    \u2502\n    \u251c\u2500\u2500 \u2696\ufe0f Step 3: Compare authorization vs. destination\n    \u2502   \u251c\u2500\u2500 International \u2192 \u274c BANNED (exceeds Domestic)\n    \u2502   \u251c\u2500\u2500 Domestic \u2192 \u2705 ALLOWED (matches Domestic)\n    \u2502   \u251c\u2500\u2500 Local \u2192 \u2705 ALLOWED (below Domestic)\n    \u2502   \u2514\u2500\u2500 Net \u2192 \u2705 ALLOWED (below Domestic)\n    \u2502\n    \u2514\u2500\u2500 \ud83d\udcde Step 4: Route or reject\n        \u251c\u2500\u2500 \u2705 Authorized \u2192 Route call, apply billing rate\n        \u2514\u2500\u2500 \u274c Banned \u2192 Reject call, no CDR generated\n<\/pre>\n\n\n\n<p>\ud83d\udcca <strong>Important note:<\/strong> The VOS3000 manual specifies that the operator editing the phone number &#8220;must have authorizations to manipulate phones of the concerned account.&#8221; This means that not only the phone&#8217;s authorization type, but also the operator&#8217;s administrative authorization level controls which phones can be modified. This dual-layer authorization system ensures that only properly authorized administrators can change call permissions. \u2696\ufe0f<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udccb-vos-3000-authorization-type-per-phone-configuration\">\ud83d\udccb VOS3000 Authorization Type \u2014 Per-Phone Configuration<\/h2>\n\n\n\n<p>\ud83d\udd11 The <strong>VOS3000 authorization type hierarchy<\/strong> is configured on a per-phone basis in the Phone Management section. Each phone&#8217;s authorization type determines its calling scope, and this is managed through the VOS3000 client interface. \ud83d\udee0\ufe0f<\/p>\n\n\n\n<p>\ud83d\udccc According to the VOS3000 Phone Management documentation:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">Setting<\/th><th class=\"has-text-align-left\" data-align=\"left\">Location<\/th><th class=\"has-text-align-left\" data-align=\"left\">Description<\/th><\/tr><tr><td><strong>Authorization type<\/strong><\/td><td>Phone Management \u2192 Phone settings<\/td><td>Set the phone&#8217;s call authorization level: International, Domestic, Local, or Net<\/td><\/tr><tr><td>Account ID<\/td><td>Phone Management \u2192 Account assignment<\/td><td>Designating the billing account for this terminal; rate of this account will be used for authorization checks<\/td><\/tr><tr><td>Default authorization type<\/td><td>System-level default setting<\/td><td>Can also set default authorization type for new phones<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\ud83d\udca1 <strong>Configuration workflow:<\/strong> When creating or editing a phone in VOS3000, navigate to the phone management page, select the desired phone, and set the authorization type to the appropriate level. The phone can also be assigned a billing account whose rate will govern both billing and authorization checks. For detailed guidance on account-based billing, see our <a href=\"https:\/\/multahost.com\/blog\/vos3000-account-billing\/\" target=\"_blank\" rel=\"noopener\">VOS3000 account billing<\/a> guide. Need help setting up phone authorizations? Reach us on WhatsApp at <strong>+8801911119966<\/strong>. \ud83d\udcf1<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udcca-vos-3000-authorization-type-deployment-scenarios\">\ud83d\udcca VOS3000 Authorization Type Hierarchy \u2014 Deployment Scenarios<\/h2>\n\n\n\n<p>\ud83c\udfe2 Different VoIP deployment scenarios require different authorization configurations. Here are recommended authorization assignments based on the VOS3000 manual specifications and common use cases: \ud83d\udca1<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">Phone User Type<\/th><th class=\"has-text-align-left\" data-align=\"left\">Recommended Authorization<\/th><th class=\"has-text-align-left\" data-align=\"left\">Rationale<\/th><\/tr><tr><td>\ud83d\udcde Executive \/ Manager<\/td><td>\ud83c\udf0d International call<\/td><td>Requires full calling scope for global business communications; includes all lower authorizations<\/td><\/tr><tr><td>\ud83c\udfe2 Sales \/ Regional staff<\/td><td>\ud83d\udcde Domestic call<\/td><td>Needs domestic long-distance plus local calling; no international access needed<\/td><\/tr><tr><td>\ud83c\udfe0 Local office worker<\/td><td>\ud83c\udfe0 Local call<\/td><td>Only requires local area calling and internal net calls; prevents long-distance charges<\/td><\/tr><tr><td>\ud83d\udd17 Internal extension only<\/td><td>\ud83d\udd17 Net call<\/td><td>Can only dial other extensions on the same system; no external calls whatsoever<\/td><\/tr><tr><td>\ud83d\udce1 Reception \/ Front desk<\/td><td>\ud83d\udcde Domestic call<\/td><td>Needs to transfer incoming calls and make domestic outbound calls for the organization<\/td><\/tr><tr><td>\ud83d\udda5\ufe0f Conference room phone<\/td><td>\ud83c\udf0d International call<\/td><td>May need to join international conference calls; full authorization ensures no call failures<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\ud83c\udfaf <strong>Best practice:<\/strong> Always assign the minimum authorization level that fulfills the phone user&#8217;s requirements. This follows the principle of least privilege and prevents unexpected toll charges. For more on controlling call costs, see our <a href=\"https:\/\/multahost.com\/blog\/vos3000-billing-system\/\" target=\"_blank\" rel=\"noopener\">VOS3000 billing system<\/a> guide and <a href=\"https:\/\/multahost.com\/blog\/vos3000-billing-overdraft-prevention\/\" target=\"_blank\" rel=\"noopener\">monthly consumption limits<\/a> reference. \ud83d\udcd6<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udd17-authorization-type-and-account-billing-relationship\">\ud83d\udd17 Authorization Type and Account Billing Relationship<\/h2>\n\n\n\n<p>\ud83d\udccb The <strong>VOS3000 authorization type hierarchy<\/strong> works in conjunction with the phone&#8217;s assigned billing account. According to the manual, when an account is designated for a phone terminal, the &#8220;Rate of this account will be used to bill and perform authorization checks upon calling.&#8221; This means the authorization check is tied to both the phone&#8217;s authorization type setting and the account&#8217;s billing rate. \ud83d\udee0\ufe0f<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">Component<\/th><th class=\"has-text-align-left\" data-align=\"left\">Scope<\/th><th class=\"has-text-align-left\" data-align=\"left\">Function<\/th><\/tr><tr><td><strong>Authorization type<\/strong><\/td><td>Per-phone setting<\/td><td>Determines which call destination types the phone can reach<\/td><\/tr><tr><td>Account billing rate<\/td><td>Per-account setting<\/td><td>Used for billing calculation and authorization checks upon calling<\/td><\/tr><tr><td>Operator authorization<\/td><td>Per-operator setting<\/td><td>Controls which phones the operator can modify; must have authorization to manipulate phones of the concerned account<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\ud83d\udccd This three-layer system ensures that: (1) the phone&#8217;s authorization type restricts call destinations, (2) the account&#8217;s rate governs billing and supplementary authorization checks, and (3) the operator&#8217;s permission level controls who can modify phone settings. For complete documentation on account rates, see our <a href=\"https:\/\/multahost.com\/blog\/vos3000-billing-rating-settlement\/\" target=\"_blank\" rel=\"noopener\">VOS3000 billing rating and settlement<\/a> guide. \ud83d\udcd6<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udee1\ufe0f-common-authorization-problems-and-solutions\">\ud83d\udee1\ufe0f Common Authorization Problems and Solutions<\/h2>\n\n\n\n<p>\u26a0\ufe0f Misconfigured authorization types can cause a range of issues in your VOS3000 deployment. Here are the most common problems and their solutions:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u274c-problem-1-phone-cannot-make-international-calls\">\u274c Problem 1: Phone Cannot Make International Calls<\/h3>\n\n\n\n<p>\ud83d\udd0d <strong>Symptom:<\/strong> A phone user reports that international calls are rejected or fail, while domestic and local calls work correctly.<\/p>\n\n\n\n<p>\ud83d\udca1 <strong>Cause:<\/strong> The phone&#8217;s authorization type is set to Domestic call or lower, which does not include International call permission. According to the VOS3000 manual, if a phone lacks the proper authorization, &#8220;the call will be banned.&#8221;<\/p>\n\n\n\n<p>\u2705 <strong>Solutions:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83d\udd10 Change the phone&#8217;s authorization type to &#8220;International call&#8221; in Phone Management<\/li>\n\n\n\n<li>\ud83d\udccb Verify the phone&#8217;s account ID is correctly assigned \u2014 the account rate affects authorization checks<\/li>\n\n\n\n<li>\ud83d\udd0d Check that the operator making the change has authorization to manipulate phones of the concerned account<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u274c-problem-2-local-phone-making-unexpected-domestic-calls\">\u274c Problem 2: Local Phone Making Unexpected Domestic Calls<\/h3>\n\n\n\n<p>\ud83d\udd0d <strong>Symptom:<\/strong> A phone assigned Local authorization is able to make domestic long-distance calls, resulting in unexpected charges.<\/p>\n\n\n\n<p>\ud83d\udca1 <strong>Cause:<\/strong> The phone&#8217;s authorization type was changed to Domestic or International by another operator, or the account&#8217;s billing rate permits domestic calls regardless of the phone&#8217;s authorization setting.<\/p>\n\n\n\n<p>\u2705 <strong>Solutions:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83d\udccb Verify the phone&#8217;s current authorization type in Phone Management<\/li>\n\n\n\n<li>\ud83d\udd0d Check the account audit log for unauthorized authorization type changes<\/li>\n\n\n\n<li>\ud83d\udd10 Ensure operator permissions are properly restricted to prevent unauthorized changes<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u274c-problem-3-operator-cannot-modify-phone-authorization\">\u274c Problem 3: Operator Cannot Modify Phone Authorization<\/h3>\n\n\n\n<p>\ud83d\udd0d <strong>Symptom:<\/strong> An operator attempts to change a phone&#8217;s authorization type but receives a permission error or the change does not save.<\/p>\n\n\n\n<p>\ud83d\udca1 <strong>Cause:<\/strong> The VOS3000 manual specifies that &#8220;the operator that edits this number must have authorizations to manipulate phones of the concerned account.&#8221; If the operator lacks the appropriate administrative authorization level, the modification will be blocked.<\/p>\n\n\n\n<p>\u2705 <strong>Solutions:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83d\udd10 Verify the operator&#8217;s authorization level includes phone management permissions<\/li>\n\n\n\n<li>\ud83d\udccb Check the operation authorization settings in user management<\/li>\n\n\n\n<li>\ud83d\udd11 An administrator can adjust the operator&#8217;s authorization template to grant the necessary permissions<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udcca-vos-3000-authorization-type-configuration-checklist\">\ud83d\udcca VOS3000 Authorization Type Configuration Checklist<\/h2>\n\n\n\n<p>\u2705 Use this checklist when deploying or auditing phone authorization types in your VOS3000 system:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">Check<\/th><th class=\"has-text-align-left\" data-align=\"left\">Action<\/th><th class=\"has-text-align-left\" data-align=\"left\">Status<\/th><\/tr><tr><td>\ud83d\udccc 1<\/td><td>Identify each phone user&#8217;s required call scope (International, Domestic, Local, Net)<\/td><td>\u2610<\/td><\/tr><tr><td>\ud83d\udccc 2<\/td><td>Set each phone&#8217;s authorization type to the minimum level that fulfills requirements<\/td><td>\u2610<\/td><\/tr><tr><td>\ud83d\udccc 3<\/td><td>Verify each phone&#8217;s account ID is correctly assigned for billing and authorization checks<\/td><td>\u2610<\/td><\/tr><tr><td>\ud83d\udccc 4<\/td><td>Test outbound calls to each destination type to confirm authorization is working<\/td><td>\u2610<\/td><\/tr><tr><td>\ud83d\udccc 5<\/td><td>Confirm phones with lower authorization (Local, Net) are properly restricted from higher-level calls<\/td><td>\u2610<\/td><\/tr><tr><td>\ud83d\udccc 6<\/td><td>Review operator authorization levels to ensure only authorized personnel can change phone permissions<\/td><td>\u2610<\/td><\/tr><tr><td>\ud83d\udccc 7<\/td><td>Document the authorization type assignment for each phone for audit and compliance purposes<\/td><td>\u2610<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\ud83d\udcde For expert guidance on VOS3000 phone authorization and account management, reach us on WhatsApp at <strong>+8801911119966<\/strong>. \ud83d\udca1<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u2753-frequently-asked-questions\">\u2753 Frequently Asked Questions<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u2753-what-is-the-vos-3000-authorization-type-hierarchy\">\u2753 What is the VOS3000 authorization type hierarchy?<\/h3>\n\n\n\n<p>\ud83d\udd10 The <strong>VOS3000 authorization type hierarchy<\/strong> defines four levels of call permission for phone extensions, with strict precedence: International call &gt; Domestic call &gt; Local call &gt; Net call. According to the VOS3000 V2.1.9.07 Manual (Section 2.5.2), higher authorization levels inherently include all lower-level permissions. A phone with International authorization can make all call types, while a phone with Net authorization can only make internal calls. If a phone lacks the proper authorization for a destination, &#8220;the call will be banned.&#8221; \ud83d\udccb<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u2753-does-a-phone-with-domestic-authorization-include-local-and-net-calls\">\u2753 Does a phone with Domestic authorization include Local and Net calls?<\/h3>\n\n\n\n<p>\ud83d\udcde Yes. According to the VOS3000 manual&#8217;s precedence rule \u2014 International call &gt; Domestic call &gt; Local call &gt; Net call \u2014 a phone with Domestic call authorization automatically has permission to make Local calls and Net calls. The hierarchy is inclusive: each higher level encompasses all lower levels. You only need to assign the highest authorization level required by the phone user, and all lower-level call permissions are automatically granted. \ud83d\udd27<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u2753-what-happens-when-a-phone-tries-to-call-a-destination-above-its-authorization-level\">\u2753 What happens when a phone tries to call a destination above its authorization level?<\/h3>\n\n\n\n<p>\ud83d\udeab According to the VOS3000 manual, if a phone lacks the proper &#8220;authorization to call the type of number specified here, the call will be banned.&#8221; For example, if a phone has Local call authorization and attempts to dial an international number, the softswitch will reject the call. No CDR is generated for banned calls, and the phone user receives a rejection response. This protects against unauthorized toll charges and ensures call permissions are enforced. \ud83d\udee1\ufe0f<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u2753-how-do-i-change-a-phones-authorization-type-in-vos-3000\">\u2753 How do I change a phone&#8217;s authorization type in VOS3000?<\/h3>\n\n\n\n<p>\u2699\ufe0f To change a phone&#8217;s authorization type: (1) Log in to VOS3000 Client with appropriate operator credentials, (2) Navigate to Phone Management, (3) Select the phone you want to modify, (4) Change the authorization type field to the desired level (International, Domestic, Local, or Net), (5) Save and apply the changes. Note that the VOS3000 manual states &#8220;the operator that edits this number must have authorizations to manipulate phones of the concerned account&#8221; \u2014 so ensure your operator account has the necessary permissions. \ud83d\udccb<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u2753-can-i-assign-multiple-authorization-types-to-a-single-phone\">\u2753 Can I assign multiple authorization types to a single phone?<\/h3>\n\n\n\n<p>\u274c No. Each phone in VOS3000 has exactly one authorization type. Because the <strong>VOS3000 authorization type hierarchy<\/strong> is inclusive \u2014 higher levels automatically include all lower levels \u2014 there is no need to assign multiple types. For example, a phone with International authorization does not need separate Domestic, Local, and Net permissions, because International already encompasses all of them. Simply assign the highest level the phone user requires. \ud83d\udca1<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"\u2753-how-does-the-account-billing-rate-relate-to-phone-authorization\">\u2753 How does the account billing rate relate to phone authorization?<\/h3>\n\n\n\n<p>\ud83d\udcca According to the VOS3000 manual, when a phone is assigned an account, the &#8220;Rate of this account will be used to bill and perform authorization checks upon calling.&#8221; This means the account&#8217;s billing rate works together with the phone&#8217;s authorization type. The phone&#8217;s authorization type controls which destination types are permitted, while the account&#8217;s rate determines the billing calculation for permitted calls. Both must be properly configured for correct authorization enforcement and accurate billing. For more details, see our <a href=\"https:\/\/multahost.com\/blog\/vos3000-account-billing\/\" target=\"_blank\" rel=\"noopener\">VOS3000 billing rate<\/a> guide. \ud83d\udcb0<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\ud83d\udcde-need-call-center-setup-support\">\ud83d\udcde Need Professional VOS3000 Setup Support?<\/h2>\n\n\n\n<p>For professional VOS3000 installations and deployment, VOS3000 Server Rental Solution:<\/p>\n\n\n\n<p>\ud83d\udcf1 <strong>WhatsApp:<\/strong> <a href=\"https:\/\/wa.me\/8801911119966\" target=\"_blank\" rel=\"noopener\">+8801911119966<\/a><br>\ud83c\udf10 <strong>Website:<\/strong> <a href=\"https:\/\/www.vos3000.com\">www.vos3000.com<\/a><br>\ud83c\udf10 <strong>Blog:<\/strong> <a href=\"https:\/\/multahost.com\/blog\" target=\"_blank\" rel=\"noopener\">multahost.com\/blog<\/a><br>\ud83d\udce5 <strong>Downloads:<\/strong> <a href=\"https:\/\/www.vos3000.com\/downloads.php\">VOS3000 Downloads<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><img decoding=\"async\" src=\"https:\/\/www.vos3000.com\/blog\/wp-content\/uploads\/2026\/04\/VOS3000-IVR-Codec-Priority-VOS3000-IVR-Voicemail-Navigation-VOS3000-IVR-Custom-Ringback-Tone-VOS3000-IVR-DTMF-Parse-Mode-VOS3000-IVR-Voicemail-System-2-1024x1024.png\" alt=\"VOS3000 Authorization Type Hierarchy, VOS3000 Reverse Charging, VOS3000 DID DDI Numbers, VOS3000 Call Forwarding Types, VOS3000 Do Not Disturb Mode, VOS3000 Display Caller ID Forwarding, VOS3000 Monthly Consumption Limits, VOS3000 IVR Callback Timing, VOS3000 IVR Call State UDP Reporting, VOS3000 IVR Codec Priority, VOS3000 IVR Voicemail Navigation, VOS3000 IVR Custom Ringback Tone, VOS3000 IVR DTMF Parse Mode, VOS3000 IVR Voicemail System, VOS3000 authorization type hierarchy, VOS3000 reverse charging configuration, VOS3000 DID DDI numbers, VOS3000 call forwarding types, VOS3000 do not disturb mode, VOS3000 display caller ID forwarding, VOS3000 monthly consumption limits, VOS3000 IVR callback timing, VOS3000 IVR call state UDP, VOS3000 IVR codec priority, VOS3000 IVR inband DTMF detection, VOS3000 IVR DTMF parse mode, VOS3000 IVR voicemail system, VOS3000 IVR voice alarm configuration, VOS3000 IVR custom ringback tone, VOS3000 IVR voicemail navigation\"><\/td><td><img decoding=\"async\" src=\"https:\/\/www.vos3000.com\/blog\/wp-content\/uploads\/2026\/04\/VOS3000-IVR-Codec-Priority-VOS3000-IVR-Voicemail-Navigation-VOS3000-IVR-Custom-Ringback-Tone-VOS3000-IVR-DTMF-Parse-Mode-VOS3000-IVR-Voicemail-System-2-1024x1024.png\" alt=\"VOS3000 Authorization Type Hierarchy, VOS3000 Reverse Charging, VOS3000 DID DDI Numbers, VOS3000 Call Forwarding Types, VOS3000 Do Not Disturb Mode, VOS3000 Display Caller ID Forwarding, VOS3000 Monthly Consumption Limits, VOS3000 IVR Callback Timing, VOS3000 IVR Call State UDP Reporting, VOS3000 IVR Codec Priority, VOS3000 IVR Voicemail Navigation, VOS3000 IVR Custom Ringback Tone, VOS3000 IVR DTMF Parse Mode, VOS3000 IVR Voicemail System, VOS3000 authorization type hierarchy, VOS3000 reverse charging configuration, VOS3000 DID DDI numbers, VOS3000 call forwarding types, VOS3000 do not disturb mode, VOS3000 display caller ID forwarding, VOS3000 monthly consumption limits, VOS3000 IVR callback timing, VOS3000 IVR call state UDP, VOS3000 IVR codec priority, VOS3000 IVR inband DTMF detection, VOS3000 IVR DTMF parse mode, VOS3000 IVR voicemail system, VOS3000 IVR voice alarm configuration, VOS3000 IVR custom ringback tone, VOS3000 IVR voicemail navigation\"><\/td><td><img decoding=\"async\" src=\"https:\/\/www.vos3000.com\/blog\/wp-content\/uploads\/2026\/04\/VOS3000-IVR-Codec-Priority-VOS3000-IVR-Voicemail-Navigation-VOS3000-IVR-Custom-Ringback-Tone-VOS3000-IVR-DTMF-Parse-Mode-VOS3000-IVR-Voicemail-System-2-1024x1024.png\" alt=\"VOS3000 Authorization Type Hierarchy, VOS3000 Reverse Charging, VOS3000 DID DDI Numbers, VOS3000 Call Forwarding Types, VOS3000 Do Not Disturb Mode, VOS3000 Display Caller ID Forwarding, VOS3000 Monthly Consumption Limits, VOS3000 IVR Callback Timing, VOS3000 IVR Call State UDP Reporting, VOS3000 IVR Codec Priority, VOS3000 IVR Voicemail Navigation, VOS3000 IVR Custom Ringback Tone, VOS3000 IVR DTMF Parse Mode, VOS3000 IVR Voicemail System, VOS3000 authorization type hierarchy, VOS3000 reverse charging configuration, VOS3000 DID DDI numbers, VOS3000 call forwarding types, VOS3000 do not disturb mode, VOS3000 display caller ID forwarding, VOS3000 monthly consumption limits, VOS3000 IVR callback timing, VOS3000 IVR call state UDP, VOS3000 IVR codec priority, VOS3000 IVR inband DTMF detection, VOS3000 IVR DTMF parse mode, VOS3000 IVR voicemail system, VOS3000 IVR voice alarm configuration, VOS3000 IVR custom ringback tone, VOS3000 IVR voicemail navigation\"><\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Master VOS3000 authorization type hierarchy: International > Domestic > Local > Net. Configure per-phone call permissions, understand precedence rules, and control which destinations each extension can reach.<\/p>\n","protected":false},"author":1,"featured_media":1515,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kadence_starter_templates_imported_post":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2],"tags":[10157,10159,5551,10146,10182,10173,10148,10185,10188,10175,10191,10153,10164,10177,10170,10154,10189,10165,10145,10172,10152,10186,10183,10144,10168,10158,10151,10169,10149,10171,10180,10167,10176,10147,10160,10184,10161,10155,10181,10150,10190,10166,10174,10163,10178,10156,10187,10162,10179],"class_list":["post-1533","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vos3000","tag-vos3000-authorization-configuration","tag-vos3000-authorization-level","tag-vos3000-authorization-management","tag-vos3000-authorization-precedence","tag-vos3000-authorization-precedence-rule","tag-vos3000-authorization-type-configuration","tag-vos3000-authorization-type-hierarchy","tag-vos3000-authorization-type-manual","tag-vos3000-authorization-type-setup-guide","tag-vos3000-billing-authorization-check","tag-vos3000-billing-rate-authorization-check","tag-vos3000-call-authorization-types","tag-vos3000-call-ban-authorization","tag-vos3000-call-destination-authorization","tag-vos3000-call-routing-authorization","tag-vos3000-call-type-hierarchy","tag-vos3000-call-type-priority","tag-vos3000-default-authorization-type","tag-vos3000-domestic-call-authorization","tag-vos3000-domestic-call-permission","tag-vos3000-extension-authorization","tag-vos3000-extension-call-type","tag-vos3000-higher-authorization-includes-lower","tag-vos3000-international-call-authorization","tag-vos3000-international-call-permission","tag-vos3000-international-domestic-local-net","tag-vos3000-local-call-authorization","tag-vos3000-local-call-permission","tag-vos3000-net-call-authorization","tag-vos3000-net-call-permission","tag-vos3000-operation-management-authorization","tag-vos3000-outbound-call-permission","tag-vos3000-phone-account-authorization","tag-vos3000-phone-authorization","tag-vos3000-phone-authorization-setup","tag-vos3000-phone-call-ban","tag-vos3000-phone-call-permission","tag-vos3000-phone-management-authorization","tag-vos3000-phone-management-page","tag-vos3000-phone-permissions","tag-vos3000-phone-restriction-by-authorization","tag-vos3000-phone-supplementary-service","tag-vos3000-phone-type-authorization","tag-vos3000-softswitch-authorization","tag-vos3000-softswitch-phone-authorization","tag-vos3000-supplementary-service-authorization","tag-vos3000-v2-1-9-07-authorization","tag-vos3000-voip-authorization-hierarchy","tag-vos3000-voip-softswitch-permission"],"acf":[],"jetpack_featured_media_url":"https:\/\/www.vos3000.com\/blog\/wp-content\/uploads\/2026\/04\/VOS3000-Authorization-Type-Hierarchy-VOS3000-Reverse-Charging-VOS3000-DID-DDI-Numbers-2.png","blog_post_layout_featured_media_urls":{"thumbnail":["https:\/\/www.vos3000.com\/blog\/wp-content\/uploads\/2026\/04\/VOS3000-Authorization-Type-Hierarchy-VOS3000-Reverse-Charging-VOS3000-DID-DDI-Numbers-2-150x150.png",150,150,true],"full":["https:\/\/www.vos3000.com\/blog\/wp-content\/uploads\/2026\/04\/VOS3000-Authorization-Type-Hierarchy-VOS3000-Reverse-Charging-VOS3000-DID-DDI-Numbers-2.png",1536,1024,false]},"categories_names":{"2":{"name":"VOS3000`","link":"https:\/\/www.vos3000.com\/blog\/category\/vos3000\/"}},"tags_names":{"10157":{"name":"VOS3000 authorization configuration","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-authorization-configuration\/"},"10159":{"name":"VOS3000 authorization level","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-authorization-level\/"},"5551":{"name":"VOS3000 authorization management","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-authorization-management\/"},"10146":{"name":"VOS3000 authorization precedence","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-authorization-precedence\/"},"10182":{"name":"VOS3000 authorization precedence rule","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-authorization-precedence-rule\/"},"10173":{"name":"VOS3000 authorization type configuration","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-authorization-type-configuration\/"},"10148":{"name":"VOS3000 authorization type hierarchy","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-authorization-type-hierarchy\/"},"10185":{"name":"VOS3000 authorization type manual","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-authorization-type-manual\/"},"10188":{"name":"VOS3000 authorization type setup guide","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-authorization-type-setup-guide\/"},"10175":{"name":"VOS3000 billing authorization check","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-billing-authorization-check\/"},"10191":{"name":"VOS3000 billing rate authorization check","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-billing-rate-authorization-check\/"},"10153":{"name":"VOS3000 call authorization types","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-call-authorization-types\/"},"10164":{"name":"VOS3000 call ban authorization","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-call-ban-authorization\/"},"10177":{"name":"VOS3000 call destination authorization","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-call-destination-authorization\/"},"10170":{"name":"VOS3000 call routing authorization","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-call-routing-authorization\/"},"10154":{"name":"VOS3000 call type hierarchy","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-call-type-hierarchy\/"},"10189":{"name":"VOS3000 call type priority","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-call-type-priority\/"},"10165":{"name":"VOS3000 default authorization type","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-default-authorization-type\/"},"10145":{"name":"VOS3000 Domestic call authorization","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-domestic-call-authorization\/"},"10172":{"name":"VOS3000 domestic call permission","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-domestic-call-permission\/"},"10152":{"name":"VOS3000 extension authorization","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-extension-authorization\/"},"10186":{"name":"VOS3000 extension call type","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-extension-call-type\/"},"10183":{"name":"VOS3000 higher authorization includes lower","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-higher-authorization-includes-lower\/"},"10144":{"name":"VOS3000 International call authorization","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-international-call-authorization\/"},"10168":{"name":"VOS3000 international call permission","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-international-call-permission\/"},"10158":{"name":"VOS3000 International Domestic Local Net","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-international-domestic-local-net\/"},"10151":{"name":"VOS3000 Local call authorization","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-local-call-authorization\/"},"10169":{"name":"VOS3000 local call permission","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-local-call-permission\/"},"10149":{"name":"VOS3000 Net call authorization","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-net-call-authorization\/"},"10171":{"name":"VOS3000 net call permission","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-net-call-permission\/"},"10180":{"name":"VOS3000 operation management authorization","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-operation-management-authorization\/"},"10167":{"name":"VOS3000 outbound call permission","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-outbound-call-permission\/"},"10176":{"name":"VOS3000 phone account authorization","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-phone-account-authorization\/"},"10147":{"name":"VOS3000 phone authorization","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-phone-authorization\/"},"10160":{"name":"VOS3000 phone authorization setup","link":"https:\/\/www.vos3000.com\/blog\/tag\/vos3000-phone-authorization-setup\/"},"10184":{"name":"VOS3000 phone call 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